You could always set a timer to disengage and reengage the timer after some set period of time. So if they sit for a week or so, then you can set a trickle charge to bring them back up... On 12/25/05, William Chops Westfield wrote: > > On Dec 25, 2005, at 2:06 PM, Philip Pemberton wrote: > > >> Some NIMH cells spec ZERO overcharge, and some can handle up to C/10 > >> although they don't really like it. > > > > *scribbles out "maintenance charge" section of his design plan* > > > > Right, that's one less thing to write code for :) > > > Most NiMH batteries go dead through self-discharge alarmingly quickly > (though there are supposed to be some new cells out there that improve > this a great deal.) If you're like me, you really want some sort of > charger where you can go to get cells that are near full charge, and > just leave cells in there waiting for your arrival. If they can't > take a maintenance charge, this makes the code MORE complicated rather > than less complicated! > > BillW > > -- > http://www.piclist.com PIC/SX FAQ & list archive > View/change your membership options at > http://mailman.mit.edu/mailman/listinfo/piclist > -- Shawn Wilton (b9 Systems) http://black9.com -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist